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发布日期:2021年06月17日
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Area Codes

Summary

Until 1997, Pennsylvania had four area codes – 814 (northwest), 412 (Pittsburgh area), 717 (central) and 215 (Philadelphia). With the increased use of cell phones and consumers purchasing additional lines in their homes, the demand for additional telephone lines exploded. This demand put the four area codes in Pennsylvania in jeopardy.

Since then, five more were added from 1997 through 2000: 724 in greater Pittsburgh, 570 in Northeastern Pa., and 610, 484 and 267 in Southeastern Pa. In 2001, another code was activated in the greater Pittsburgh area (878). Over the succeeding years, conservation measures implemented by the Commission and the FCC delayed additional area exhaustions until 2013 when the 272 area code was added to portions of the state. 

  • The 272 area code overlay went into service October 21, 2013, in the 570 Number Planning Area (NPA).
  • The 223 area code overlay went into service September 26, 2017, in the 717 NPA.
  • The 445 area code overlay went into service March 3, 2018, in the 215/267 NPA.

Statewide Area Codes Map

Regional Area Code Maps

View area code maps by county and rate center. All maps are PDFs.

Thousands-Block Pooling

Mandatory thousands-block pooling began in June 2010. The industry, NANPA and the Commission monitor the area codes to determine if or when relief will be needed. Pooling uses telephone numbers more efficiently while ultimately delaying the need to add new area codes in the future. 

 

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Conserving Area Codes

Over the past several years, the PUC instituted several numbering conservation efforts to slow the proliferation of area codes in Pennsylvania, including pooling and NXX code and thousands-block reclamation.

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Current Status of Area Codes

Northwestern Pennsylvania

There is currently only one area code in Northwest Pennsylvania: 814. The area code stretches from Erie to Johnstown to Breezewood, State College and Potter County.

814 Area Code Map
Outlines the counties and rate centers in the 814 region.

Order - Petition for Approval of Numbering Plan Area Relief Planning for the 814 Area Code at Docket No. P-2018-3004265. From the Public Meeting of April 30, 2020. Press Release dated April 30, 2020.

Northeastern Pennsylvania

There are currently two area codes in northeast Pennsylvania: 570 and 272. The region covers Williamsport, Scranton, Wilkes-Barre and Monroe County.

272/570 Area Code Map

The 272 area code went into service on October 21, 2013 in the 570 NPA.

 

Southeastern Pennsylvania

There are currently four area codes in Southeastern Pennsylvania: 215, 267, 445, 484 and 610. 

215/267/445 Area Code Map
Outlines the counties and rate centers in the 215/267/445 region.

610/484 Area Code Map
Outlines the counties and rate centers in the 610/484 region.

The 267 area code works in the same region as the 215 area code and was introduced in June 1999 primarily to handle metropolitan Philadelphia. The 484 area code works in the 610 region and was introduced in June 1999. With all overlays, customers must dial 10 digits for all calls.

 

Central Pennsylvania

There are two area codes in Central Pennsylvania: 717 and 223. 

717/223 Area Code Map
Outlines the counties and rate centers in the 717/223 region.

In April 1999, the 717 area code split into two regions. The southern region kept the 717 area code and the northern section was given the 570 area code.

The 223 area code overlay went into service Sept. 26, 2017, in the 717 NPA.

717/223 Overlay Fact Sheet – Information, key date and tips regarding the switch to mandatory 10-digit dialing in the 717/223 service area. 

Western Pennsylvania

There are currently three area codes in Western Pennsylvania: 412, 724 and 878. T

412/724/878 Area Code Map
Outlines the rate centers in the 412/878 region.
 

On February 1, 1998, the 412 area code was split and the 724 area code was created. The 412/724 area codes began thousands-block pooling in October 2001.

On July 12, 2001, the 878 area code began as an overlay for both the 412 and 724 area codes.

 

Area Code FAQs

Learn more about area codes through frequently asked questions.

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Related Links

Neustar
The number pooling administrator for the pooling trials.

Area Code Locations
A list of locations for each area code in the US, Canada and some Caribbean Islands.

NANPA - Area Codes
North American Numbering Plan Administration who assigns telephone numbers to telephone carriers.

Complaints

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811: PA One Call

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